Given NASA's budget cuts, ESCAPADE might escape Earth's gravity during the next window either :(
It's a low cost mission (~$80M?), so it still made some partial sense to try it out even on an untested rocket (which brought the launch costs down even further).
But if it slips to the next or even later windows (and Mars windows aren't plentiful), it might get just totally binned altogether, unfortunately. Any extended clean room storage and team costs don't go well in the current NASA climate, with the congress‑critters' mandated SLS sucking the majority of it. NASA shelved another low cost mission this year after all, not wanting to pay the clean room costs.
Sad. I'd have rather given the team say a just 60% chance of a launch success on the BONG's first flight, than a 90% chance of being binned by the NASA admins next year or the one after because of extended costs (the numbers were pulled out of my arse, but you get the gist of it).
But inevitable – BO wanted to do a hot‑fire test with it aboard (saving integration time), but I guess they or NASA don't really think they could hit the Oct launch window anyway.